epa 608 universal
Refrigeration technicians who violate the Clean Air Act can: - - ANSWER Lose their
EPA certification, be fined, be required to appear in Federal court.
After 1995, any supplies of CFC refrigerants to service existing units in the USA can
only come from: - - ANSWER recovery and recycling.
Refrigerant that is recovered can be returned to: - - ANSWER the same system or
other systems owned by the same person without restriction.
Refrigerant can not be called "reclaimed" unless it: - . - ANSWER has been
chemically analyzed and the refrigerant meets the ARI-700 standard.
The EPA can require a technician to demonstrate their ability to perform proper
procedures for recovering and/or recycling refrigerant. Failure to demonstrate
competency can result in: - - ANSWER revocation of the technicians certification.
What characteristic(s) of CFCs make them more likely to reach the stratosphere than
most other compounds containing chlorine? - - ANSWER Refrigerants that contain
chlorine but not hydrogen are so stable that they do not break down in the lower
atmosphere after being released. The chlorine or bromine reacts with the ozone,
causing it to change back to oxygen, thus destroying the ozone layer.
A system is considered dehydrated when: - - ANSWER the vacuum indicator shows
you have reached and held the required finished vacuum.
Disposable refrigerant containers are used for ______ - ANSWER virgin refrigerant
Which refrigerant is an HCFC? - - ANSWER R-123, R-124, R-22
What statement is true about an azeotropic refrigerant mixture? - - ANSWER It is a
mixture that acts like a single-component refrigerant over its entire range.
Chlorofluorocarbos (CFCs) and hydrochlorofluorocarbons (HCFCs) have which of
the following in common? - - ANSWER It is a mixture that acts like a single-
component refrigerant over its entire range.
To scrap a disposable cylinder, the internal cylinder pressure should be reduced to
at least: - - ANSWER 0 psig.
Manifold gauge sets are often color coded, when this is done, the high pressure
gauge is color coded: - Red. - ANSWER
, In general, blended refrigerants should be charged: - - ANSWER as a liquid.
Blended refrigerants leak from a system: - - ANSWER in uneven amounts due to
different vapor pressures.
Which of the following gases help form the earth's protective shield? - Stratospheric
Ozone - ANSWER
In a refrigerant system, the device that changes a low pressure vapor to a high
pressure vapor is the: - compressor. - ANSWER
Data shows that chlorine in the stratosphere comes mainly from CFCs rather than
from natural sources such as volcanoes because: - The rise in the amount of
chlorine in the stratosphere matches the rise in the amount of fluorine, which has
different natural sources than chlorine; The rise in the amount of chlorine in the
stratosphere matches the rise in CFC emissions; Air samples taken from the
stratosphere over erupting volcanoes show that volcanoes contribute a small
quantity of chlorine to the stratosphere when compared to CFCs; - ANSWER
Which atom of the CFC molecule causes ozone depletion? - chlorine - ANSWER
The ozone layer protects the earth from: - ultraviolet radiation from the sun. -
ANSWER
When using with any solvent, cleaner, chemical or refrigerant, you should review: -
material safety data sheets. - ANSWER
An award of up to what amount may be paid to a person supplying information that
leads to a penalty against a technician who is intentionally venting? - 10,000 -
ANSWER
The Montreal Protocol is: - a treaty among nations that controls production of CFCs
and HCFCs. - ANSWER
Which refrigerant is an HCFC? - R-123, R-22, R-124 - ANSWER
What is one of the most serious results of damage to the ozone layer? - increases in
human skin cancer - ANSWER
Of the refrigerants listed below, which has the lowest ozone depletion potential
(ODP)? - R-22 - ANSWER
To determine the maximum allowable pressure to use when checking a system,
check: - the design pressure on the equipment nameplate - ANSWER
Ozone depletion potential, or "ODP," is: - A measure of the ability of CFCs and
HCFCs to destroy ozone. - ANSWER
An example of an HFC refrigerant is: - R-134a - ANSWER
Refrigeration technicians who violate the Clean Air Act can: - - ANSWER Lose their
EPA certification, be fined, be required to appear in Federal court.
After 1995, any supplies of CFC refrigerants to service existing units in the USA can
only come from: - - ANSWER recovery and recycling.
Refrigerant that is recovered can be returned to: - - ANSWER the same system or
other systems owned by the same person without restriction.
Refrigerant can not be called "reclaimed" unless it: - . - ANSWER has been
chemically analyzed and the refrigerant meets the ARI-700 standard.
The EPA can require a technician to demonstrate their ability to perform proper
procedures for recovering and/or recycling refrigerant. Failure to demonstrate
competency can result in: - - ANSWER revocation of the technicians certification.
What characteristic(s) of CFCs make them more likely to reach the stratosphere than
most other compounds containing chlorine? - - ANSWER Refrigerants that contain
chlorine but not hydrogen are so stable that they do not break down in the lower
atmosphere after being released. The chlorine or bromine reacts with the ozone,
causing it to change back to oxygen, thus destroying the ozone layer.
A system is considered dehydrated when: - - ANSWER the vacuum indicator shows
you have reached and held the required finished vacuum.
Disposable refrigerant containers are used for ______ - ANSWER virgin refrigerant
Which refrigerant is an HCFC? - - ANSWER R-123, R-124, R-22
What statement is true about an azeotropic refrigerant mixture? - - ANSWER It is a
mixture that acts like a single-component refrigerant over its entire range.
Chlorofluorocarbos (CFCs) and hydrochlorofluorocarbons (HCFCs) have which of
the following in common? - - ANSWER It is a mixture that acts like a single-
component refrigerant over its entire range.
To scrap a disposable cylinder, the internal cylinder pressure should be reduced to
at least: - - ANSWER 0 psig.
Manifold gauge sets are often color coded, when this is done, the high pressure
gauge is color coded: - Red. - ANSWER
, In general, blended refrigerants should be charged: - - ANSWER as a liquid.
Blended refrigerants leak from a system: - - ANSWER in uneven amounts due to
different vapor pressures.
Which of the following gases help form the earth's protective shield? - Stratospheric
Ozone - ANSWER
In a refrigerant system, the device that changes a low pressure vapor to a high
pressure vapor is the: - compressor. - ANSWER
Data shows that chlorine in the stratosphere comes mainly from CFCs rather than
from natural sources such as volcanoes because: - The rise in the amount of
chlorine in the stratosphere matches the rise in the amount of fluorine, which has
different natural sources than chlorine; The rise in the amount of chlorine in the
stratosphere matches the rise in CFC emissions; Air samples taken from the
stratosphere over erupting volcanoes show that volcanoes contribute a small
quantity of chlorine to the stratosphere when compared to CFCs; - ANSWER
Which atom of the CFC molecule causes ozone depletion? - chlorine - ANSWER
The ozone layer protects the earth from: - ultraviolet radiation from the sun. -
ANSWER
When using with any solvent, cleaner, chemical or refrigerant, you should review: -
material safety data sheets. - ANSWER
An award of up to what amount may be paid to a person supplying information that
leads to a penalty against a technician who is intentionally venting? - 10,000 -
ANSWER
The Montreal Protocol is: - a treaty among nations that controls production of CFCs
and HCFCs. - ANSWER
Which refrigerant is an HCFC? - R-123, R-22, R-124 - ANSWER
What is one of the most serious results of damage to the ozone layer? - increases in
human skin cancer - ANSWER
Of the refrigerants listed below, which has the lowest ozone depletion potential
(ODP)? - R-22 - ANSWER
To determine the maximum allowable pressure to use when checking a system,
check: - the design pressure on the equipment nameplate - ANSWER
Ozone depletion potential, or "ODP," is: - A measure of the ability of CFCs and
HCFCs to destroy ozone. - ANSWER
An example of an HFC refrigerant is: - R-134a - ANSWER
